Speech synthesis system using time quantised signals - has discrete sets of amplitudes and phases Fourier transform processed

摘要

A speech synthesis system uses electrical signals. The time quantisised signals are Fourier transformed to produce a set of discrete amplitude and phase angles. The phase angles are so selected that the inverse of the Fourier transformation of the amplitudes and the new phases are symmetrical. The phase adjusted amplitudes and phases are inverse Fourier transformed and a half voltage form is selected as being representative of each set of discrete values and stored. The remaining half voltage form is removed during the operation of the system.